Method for preparing germanium nano array by inducing ionic liquid electro-deposition with laser

A technology of ionic liquids and nano-arrays, applied in the direction of nano-technology, can solve the problems of complex and toxic preparation processes

Inactive Publication Date: 2015-10-21
JILIN NORMAL UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing germanium nanoarrays by laser-induced ionic liquid electrodeposition to solve the problems that the existing germanium nanoarrays require high temperature and the preparation process is complex and toxic.

Method used

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  • Method for preparing germanium nano array by inducing ionic liquid electro-deposition with laser
  • Method for preparing germanium nano array by inducing ionic liquid electro-deposition with laser
  • Method for preparing germanium nano array by inducing ionic liquid electro-deposition with laser

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Embodiment 1

[0036] 1. 1-Ethyl-3-methylimidazole bis-trifluoromethanesulfonimide salt (EMImTf 2 N) The ionic liquid was subjected to secondary dehydration treatment in a glove box filled with argon, vacuum distillation at 100°C for 24h, and [EMIm]Tf 2 Adding GeCl to N ionic liquid 4 , to prepare an electrolyte solution with a concentration of 0.2mol / L. After mixing, the prepared electrolyte solution needs to be left in a glove box for 24 hours to make GeCl 4 Completely soluble in ionic liquid;

[0037] 2. Clean the ITO conductive glass substrate sequentially with acetone, methanol and ultrapure water for 20 minutes, vacuum dry at 100°C and then clean it with argon plasma for 20 minutes, connect the electrode, use the ITO substrate as the working electrode, 99.999% Platinum wire is used as an auxiliary electrode, and 99.999% silver wire is used as a reference electrode, and the deposition area is limited to 0.3 cm by using a polytetrafluoroethylene electrolytic cell 4 2 ;

[0038] 3. Pu...

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Abstract

The invention provides a method for preparing a germanium nano array by inducing ionic liquid electro-deposition with a laser, and belongs to the technical field of preparation methods of the germanium nano array. The method solves the problems that a conventional preparation method of the germanium nano array requires a high temperature, is complex in preparation technology and is toxic. According to the method disclosed by the invention, an ionic liquid electro-deposition technology and a laser irradiation technology are combined, non-toxic pollution-free green ionic liquid 1-ethyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide is used as a solvent, Gecl4 is used as an electrolyte, the electrolyte is irradiated by a pulsed laser, and a one-step method is adopted to prepare the germanium nano array in an electro-deposition manner. The preparation method does not require the high temperature and is simple in technology, convenient to operate and easy to realize.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of germanium nano-arrays, and in particular relates to a method for preparing germanium nano-arrays by laser-induced ionic liquid electrodeposition. Background technique [0002] Due to its important application in the field of all-electric vehicle energy storage systems, lithium-ion batteries have been studied a lot in recent years, especially finding new electrode materials to improve the performance of lithium-ion batteries is a recent research hotspot. One of them is the utilization of new anode materials that can provide higher capacity and better cycle performance than the commonly used graphite anode (charge density 372mAh / g). Alternative materials need to have large discharge capacity, the ability to withstand high current and good reversibility of charge cycle life. Many metallic and non-metallic materials such as silicon, aluminum, tin, and bismuth have been used in large qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/66C25D5/00B82Y40/00
Inventor 于兆亮孟祥东李海波华杰曲晓慧胡悦
Owner JILIN NORMAL UNIV
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